SYNOPSIS OF NORTH AMERICAN SYRPHIDiE. 27 



ous, penultimate joint of the liiud pairs black, of tbe front pair fuscous, 

 terminal joints of the hind pair fuscous, of the front and middle pairs 

 ochraceous or subfuscous. Wings cinereous hyaline, basal third more 

 purely hyaline, stigma ochraceous subfuscous. 

 Two specimens from Pennsylvania (E. L. Keen). 



Pipiza festiva. (Plate II, fig. 4.) 



Pipizafestivii Meigen, Syst. Beschr., iii, 243, 2; Schiuer, Fauna, etc., i, 262. 

 Pipiza ornata Meigeu, Syst. Beschr., iii, 243, 3 (Scbiner). 

 Pipiza lunata Meigeu, Syst. Beschr., iii, 243, 4 (Schiuer). 

 Pipiza artemis Meigen, Syst. Beschr., iii, 244, 5 (Schiuer). 



Habitat. — Europe!, Canada"? (O. S.) 



5,9. Length, 6 to 10.5"""^ Front and face long white pilose, below 

 the ocelli and about the base of the antennae in the female, blackish 

 pilose. Antennae brown, third joint trapezoidal. Thorax white pilose. 

 Posterior part of the second and third abdominal segments black pilose ; 

 second segment with a variable yellow baud, "sometimes sulphur yel- 

 low, at other times reddish yellow; anterior margin concave or straight ; 

 sometimes interrupted by a distinct blask space, at other times only by 

 a dark line.'' (Schiuer). Legs yellow, with black femora; tibiae more or 

 less browu in the middle. Wings hyaline on the basal half, externally 

 blackish or smoky brown, fading out toward the margin; stigma dark 

 luteous. 



I give the description of this species, although it is not kuown for cer- 

 tain that it occurs in this country, it being given in Osteu Sacken's 

 catalogue, with the remark, "or a species allied to it," as occurring in 

 Canada. The European species, P. 7ioctiluca, closely related, has the 

 tarsi in large part black. 



Pipiza puella, n. sp. (Plate II, fig. 3.) 



Habitat. — Xew Hampshire ! 



5 . Length, 6"^"*. Dark bluish black, clothed with light yellowish- 

 white pile. Frontal triangle white pilose on upper portion, black pilose 

 below ; face white pilose, except uear the mouth, where it is black i>ilo8e. 

 Autenute black; third joint cordate. Eyes blackish pilose, in some 

 lights showing luteous ; posterior orbits wholly white ciliate, a little 

 blackish pile at the vertex only. Abdomen with short black pile, except 

 on the broad anterior angles and lateral margins of each segment. 

 Legs black ; the immediate tip of front and middle femora, the front 

 tibiae, except a broad brownish ring, the middle and hind tibiae at base 

 and tip, and all the tarsi, except the last two joints, yellow. Wings 

 nearly hyaline before the cross-veins, with a distinct brownish cloud at 

 the cross- veins, fading out beyond and behind; stigma luteous ; cross - 

 veins at outer part of first posterior and discal cells nearly i^arallel with 

 the hind border of the wing, the outer posterior angle of first posterior 

 cell with a stump of a vein. 



One specimen, White Mountains, l!^ew Hampshire, August 1. 



